[FIX] transferbot: Fixed unicode_literals position
[FIX] transferbot: Fixed unicode_literals position

In the transferbot, the location of unicode_literals in 1e54a7d6 was added in
the docstring and not the code after it.

Change-Id: Ibba4d2c898051c09876cab501957c28e24f76985

wikimedia/pywikibot-core,darthbhyrava/pywikibot-local,h4ck3rm1k3/pywikibot-core,happy5214/pywikibot-core,npdoty/pywikibot,wikimedia/pywikibot-core,TridevGuha/pywikibot-core,emijrp/pywikibot-core,npdoty/pywikibot,hasteur/g13bot_tools_new,jayvdb/pywikibot-core,magul/pywikibot-core,magul/pywikibot-core,icyflame/batman,hasteur/g13bot_tools_new,valhallasw/pywikibot-core,hasteur/g13bot_tools_new,h4ck3rm1k3/pywikibot-core,Darkdadaah/pywikibot-core,PersianWikipedia/pywikibot-core,VcamX/pywikibot-core,jayvdb/pywikibot-core,smalyshev/pywikibot-core,trishnaguha/pywikibot-core,Darkdadaah/pywikibot-core,xZise/pywikibot-core,happy5214/pywikibot-core